Selecting color values for augmented reality-based makeup

ABSTRACT

Aspects of the present disclosure involve a system comprising a computer-readable storage medium storing a program and method for providing make-up based augmented reality content. The program and method provide for receiving a request to present augmented reality content in association with a captured image depicting a face of the user; accessing an augmented reality content item associated with applying makeup to the face and configured to generate a mesh for tracking plural regions of the face; receiving user input selecting a region; determining at least one of a range of color values or a range of contrast values relating to available makeup products for the selected region; and presenting an interface element in association with the face, the interface element for user selection of at least one of a color value within the range of color values or a contrast value within the range of contrast values.

CROSS-REFERENCE TO RELATED APPLICATION

This patent application claims the benefit of U.S. Provisional PatentApplication No. 63/198,078, filed Sep. 28, 2020, entitled “SELECTINGCOLOR VALUES FOR AUGMENTED REALITY-BASED MAKEUP”, which is incorporatedby reference herein in its entirety.

TECHNICAL FIELD

The present disclosure relates generally to a messaging system,including providing augmented reality content with a captured image.

BACKGROUND

Messaging systems provide for the exchange of message content betweenusers. For example, a messaging system allows a user to exchange messagecontent (e.g., text, images) with one or more other users.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

In the drawings, which are not necessarily drawn to scale, like numeralsmay describe similar components in different views. To easily identifythe discussion of any particular element or act, the most significantdigit or digits in a reference number refer to the figure number inwhich that element is first introduced. Some nonlimiting examples areillustrated in the figures of the accompanying drawings in which:

FIG. 1 is a diagrammatic representation of a networked environment inwhich the present disclosure may be deployed, in accordance with someexamples.

FIG. 2 is a diagrammatic representation of a messaging system, inaccordance with some examples, that has both client-side and server-sidefunctionality.

FIG. 3 is a diagrammatic representation of a data structure asmaintained in a database, in accordance with some examples.

FIG. 4 is a diagrammatic representation of a message, in accordance withsome examples.

FIG. 5 is an interaction diagram illustrating a process for providingaugmented reality-based makeup in a messaging system, in accordance withsome example embodiments.

FIG. 6A illustrates an example user interface with interface elementsfor selecting makeup color and contrast, in accordance with some exampleembodiments.

FIG. 6B illustrates another example user interface with interfaceelements for selecting makeup color and contrast, in accordance withsome example embodiments.

FIG. 6C illustrates another example user interface with interfaceelements for selecting makeup color and contrast, in accordance withsome example embodiments.

FIG. 7A illustrates an example user interface in which a user providestouch input for changing makeup color, in accordance with some exampleembodiments.

FIG. 7B illustrates an example user interface for changing makeup color,in accordance with some example embodiments.

FIG. 8 is a flowchart illustrating a process for providing augmentedreality-based makeup in a messaging system, in accordance with someexample embodiments.

FIG. 9 is a flowchart for an access-limiting process, in accordance withsome examples.

FIG. 10 is a diagrammatic representation of a machine in the form of acomputer system within which a set of instructions may be executed forcausing the machine to perform any one or more of the methodologiesdiscussed herein, in accordance with some examples.

FIG. 11 is a block diagram showing a software architecture within whichexamples may be implemented.

DETAILED DESCRIPTION

A messaging system typically allow users to exchange content items(e.g., messages, images and/or video) with one another in a messagethread. A messaging system may implement or otherwise work inconjunction with a shopping system for the on-line purchase of goodsand/or services.

The disclosed embodiments provide for a messaging client to presentaugmented reality content for trying on makeup products. The messagingclient activates or otherwise accesses an augmented reality content item(e.g., corresponding to a Lens or augmented reality experience) whichgenerates a mesh for tracking regions of a face depicted in a capturedimage. The augmented reality content item provides for a user to selecta region of the face, and depicts ranges for color and contrastcorresponding to makeup that can be applied to the selected region. Auser may select a particular color and/or contrast within the depictedranges, and the messaging client presents simulated makeup as an overlayon the facial region. In addition, makeup product(s) matching theselected color and/or contrast may be presented with shopping cartinterface element(s) for adding to the user's shopping cart for eventualpurchase.

FIG. 1 is a block diagram showing an example messaging system 100 forexchanging data (e.g., messages and associated content) over a network.The messaging system 100 includes multiple instances of a client device102, each of which hosts a number of applications, including a messagingclient 104 and other applications 106. Each messaging client 104 iscommunicatively coupled to other instances of the messaging client 104(e.g., hosted on respective other client devices 102), a messagingserver system 108 and third-party servers 110 via a network 112 (e.g.,the Internet). A messaging client 104 can also communicate withlocally-hosted applications 106 using Applications Program Interfaces(APIs).

A messaging client 104 is able to communicate and exchange data withother messaging clients 104 and with the messaging server system 108 viathe network 112. The data exchanged between messaging clients 104, andbetween a messaging client 104 and the messaging server system 108,includes functions (e.g., commands to invoke functions) as well aspayload data (e.g., text, audio, video or other multimedia data).

The messaging server system 108 provides server-side functionality viathe network 112 to a particular messaging client 104. While certainfunctions of the messaging system 100 are described herein as beingperformed by either a messaging client 104 or by the messaging serversystem 108, the location of certain functionality either within themessaging client 104 or the messaging server system 108 may be a designchoice. For example, it may be technically preferable to initiallydeploy certain technology and functionality within the messaging serversystem 108 but to later migrate this technology and functionality to themessaging client 104 where a client device 102 has sufficient processingcapacity.

The messaging server system 108 supports various services and operationsthat are provided to the messaging client 104. Such operations includetransmitting data to, receiving data from, and processing data generatedby the messaging client 104. This data may include message content,client device information, geolocation information, media augmentationand overlays, message content persistence conditions, social networkinformation, and live event information, as examples. Data exchangeswithin the messaging system 100 are invoked and controlled throughfunctions available via user interfaces (UIs) of the messaging client104.

Turning now specifically to the messaging server system 108, anApplication Program Interface (API) server 116 is coupled to, andprovides a programmatic interface to, application servers 114. Theapplication servers 114 are communicatively coupled to a database server120, which facilitates access to a database 126 that stores dataassociated with messages processed by the application servers 114.Similarly, a web server 128 is coupled to the application servers 114,and provides web-based interfaces to the application servers 114. Tothis end, the web server 128 processes incoming network requests overthe Hypertext Transfer Protocol (HTTP) and several other relatedprotocols.

The Application Program Interface (API) server 116 receives andtransmits message data (e.g., commands and message payloads) between theclient device 102 and the application servers 114. Specifically, theApplication Program Interface (API) server 116 provides a set ofinterfaces (e.g., routines and protocols) that can be called or queriedby the messaging client 104 in order to invoke functionality of theapplication servers 114. The Application Program Interface (API) server116 exposes various functions supported by the application servers 114,including account registration, login functionality, the sending ofmessages, via the application servers 114, from a particular messagingclient 104 to another messaging client 104, the sending of media files(e.g., images or video) from a messaging client 104 to a messagingserver 118, and for possible access by another messaging client 104, thesettings of a collection of media data (e.g., story), the retrieval of alist of friends of a user of a client device 102, the retrieval of suchcollections, the retrieval of messages and content, the addition anddeletion of entities (e.g., friends) to an entity graph (e.g., a socialgraph), the location of friends within a social graph, and opening anapplication event (e.g., relating to the messaging client 104).

The application servers 114 host a number of server applications andsubsystems, including for example a messaging server 18, an imageprocessing server 122, and a social network server 124. The messagingserver 118 implements a number of message processing technologies andfunctions, particularly related to the aggregation and other processingof content (e.g., textual and multimedia content) included in messagesreceived from multiple instances of the messaging client 104. As will bedescribed in further detail, the text and media content from multiplesources may be aggregated into collections of content (e.g., calledstories or galleries). These collections are then made available to themessaging client 104. Other processor and memory intensive processing ofdata may also be performed server-side by the messaging server 118, inview of the hardware requirements for such processing.

The application servers 114 also include an image processing server 122that is dedicated to performing various image processing operations,typically with respect to images or video within the payload of amessage sent from or received at the messaging server 118.

The social network server 124 supports various social networkingfunctions and services and makes these functions and services availableto the messaging server 118. To this end, the social network server 124maintains and accesses an entity graph 304 (as shown in FIG. 3) withinthe database 126. Examples of functions and services supported by thesocial network server 124 include the identification of other users ofthe messaging system 100 with which a particular user has relationshipsor is “following,” and also the identification of other entities andinterests of a particular user.

Returning to the messaging client 104, features and functions of anexternal resource (e.g., an application 106 or applet) are madeavailable to a user via an interface of the messaging client 104. Inthis context, “external” refers to the fact that the application 106 orapplet is external to the messaging client 104. The external resource isoften provided by a third party but may also be provided by the creatoror provider of the messaging client 104. The messaging client 104receives a user selection of an option to launch or access features ofsuch an external resource. The external resource may be the application106 installed on the client device 102 (e.g., a “native app”), or asmall-scale version of the application (e.g., an “applet”) that ishosted on the client device 102 or remote of the client device 102(e.g., on third-party servers 110). The small-scale version of theapplication includes a subset of features and functions of theapplication (e.g., the full-scale, native version of the application)and is implemented using a markup-language document. In one example, thesmall-scale version of the application (e.g., an “applet”) is aweb-based, markup-language version of the application and is embedded inthe messaging client 104. In addition to using markup-language documents(e.g., a .*ml file), an applet may incorporate a scripting language(e.g., a .*js file or a .json file) and a style sheet (e.g., a .*ssfile).

In response to receiving a user selection of the option to launch oraccess features of the external resource, the messaging client 104determines whether the selected external resource is a web-basedexternal resource or a locally-installed application 106. In some cases,applications 106 that are locally installed on the client device 102 canbe launched independently of and separately from the messaging client104, such as by selecting an icon, corresponding to the application 106,on a home screen of the client device 102. Small-scale versions of suchapplications can be launched or accessed via the messaging client 104and, in some examples, no or limited portions of the small-scaleapplication can be accessed outside of the messaging client 104. Thesmall-scale application can be launched by the messaging client 104receiving, from a third-party server 110 for example, a markup-languagedocument associated with the small-scale application and processing sucha document.

In response to determining that the external resource is alocally-installed application 106, the messaging client 104 instructsthe client device 102 to launch the external resource by executinglocally-stored code corresponding to the external resource. In responseto determining that the external resource is a web-based resource, themessaging client 104 communicates with the third-party servers 110 (forexample) to obtain a markup-language document corresponding to theselected external resource. The messaging client 104 then processes theobtained markup-language document to present the web-based externalresource within a user interface of the messaging client 104.

The messaging client 104 can notify a user of the client device 102, orother users related to such a user (e.g., “friends”), of activity takingplace in one or more external resources. For example, the messagingclient 104 can provide participants in a conversation (e.g., a chatsession) in the messaging client 104 with notifications relating to thecurrent or recent use of an external resource by one or more members ofa group of users. One or more users can be invited to join in an activeexternal resource or to launch a recently-used but currently inactive(in the group of friends) external resource. The external resource canprovide participants in a conversation, each using respective messagingclients 104, with the ability to share an item, status, state, orlocation in an external resource with one or more members of a group ofusers into a chat session. The shared item may be an interactive chatcard with which members of the chat can interact, for example, to launchthe corresponding external resource, view specific information withinthe external resource, or take the member of the chat to a specificlocation or state within the external resource. Within a given externalresource, response messages can be sent to users on the messaging client104. The external resource can selectively include different media itemsin the responses, based on a current context of the external resource.

The messaging client 104 can present a list of the available externalresources (e.g., applications 106 or applets) to a user to launch oraccess a given external resource. This list can be presented in acontext-sensitive menu. For example, the icons representing differentones of the application 106 (or applets) can vary based on how the menuis launched by the user (e.g., from a conversation interface or from anon-conversation interface).

FIG. 2 is a block diagram illustrating further details regarding themessaging system 100, according to some examples. Specifically, themessaging system 100 is shown to comprise the messaging client 104 andthe application servers 114. The messaging system 100 embodies a numberof subsystems, which are supported on the client-side by the messagingclient 104 and on the sever-side by the application servers 114. Thesesubsystems include, for example, an ephemeral timer system 202, acollection management system 204, an augmentation system 208, a mapsystem 210, an external resource system 212, and a shopping system 214.

The ephemeral timer system 202 is responsible for enforcing thetemporary or time-limited access to content by the messaging client 104and the messaging server 118. The ephemeral timer system 202incorporates a number of timers that, based on duration and displayparameters associated with a message, or collection of messages (e.g., astory), selectively enable access (e.g., for presentation and display)to messages and associated content via the messaging client 104. Furtherdetails regarding the operation of the ephemeral timer system 202 areprovided below.

The collection management system 204 is responsible for managing sets orcollections of media (e.g., collections of text, image video, and audiodata). A collection of content (e.g., messages, including images, video,text, and audio) may be organized into an “event gallery” or an “eventstory.” Such a collection may be made available for a specified timeperiod, such as the duration of an event to which the content relates.For example, content relating to a music concert may be made availableas a “story” for the duration of that music concert. The collectionmanagement system 204 may also be responsible for publishing an iconthat provides notification of the existence of a particular collectionto the user interface of the messaging client 104.

The collection management system 204 furthermore includes a curationinterface 206 that allows a collection manager to manage and curate aparticular collection of content. For example, the curation interface206 enables an event organizer to curate a collection of contentrelating to a specific event (e.g., delete inappropriate content orredundant messages).

Additionally, the collection management system 204 employs machinevision (or image recognition technology) and content rules toautomatically curate a content collection. In certain examples,compensation may be paid to a user for the inclusion of user-generatedcontent into a collection. In such cases, the collection managementsystem 204 operates to automatically make payments to such users for theuse of their content.

The augmentation system 208 provides various functions that enable auser to augment (e.g., annotate or otherwise modify or edit) mediacontent associated with a message. For example, the augmentation system208 provides functions related to the generation and publishing of mediaoverlays for messages processed by the messaging system 100. Theaugmentation system 208 operatively supplies a media overlay oraugmentation (e.g., an image filter) to the messaging client 104 basedon a geolocation of the client device 102. In another example, theaugmentation system 208 operatively supplies a media overlay to themessaging client 104 based on other information, such as social networkinformation of the user of the client device 102. A media overlay mayinclude audio and visual content and visual effects. Examples of audioand visual content include pictures, texts, logos, animations, and soundeffects. An example of a visual effect includes color overlaying. Theaudio and visual content or the visual effects can be applied to a mediacontent item (e.g., a photo) at the client device 102. For example, themedia overlay may include text or image that can be overlaid on top of aphotograph taken by the client device 102. In another example, the mediaoverlay includes an identification of a location overlay (e.g., Venicebeach), a name of a live event, or a name of a merchant overlay (e.g.,Beach Coffee House). In another example, the augmentation system 208uses the geolocation of the client device 102 to identify a mediaoverlay that includes the name of a merchant at the geolocation of theclient device 102. The media overlay may include other indiciaassociated with the merchant. The media overlays may be stored in thedatabase 126 and accessed through the database server 120.

In some examples, the augmentation system 208 provides a user-basedpublication platform that enables users to select a geolocation on a mapand upload content associated with the selected geolocation. The usermay also specify circumstances under which a particular media overlayshould be offered to other users. The augmentation system 208 generatesa media overlay that includes the uploaded content and associates theuploaded content with the selected geolocation.

In other examples, the augmentation system 208 provides a merchant-basedpublication platform that enables merchants to select a particular mediaoverlay associated with a geolocation via a bidding process. Forexample, the augmentation system 208 associates the media overlay of thehighest bidding merchant with a corresponding geolocation for apredefined amount of time.

In other examples, as discussed below with respect to FIG. 3, theaugmentation system 208 provides for presenting augmented realitycontent in association with an image or a video captured by a camera ofthe client device 102. The augmentation system 208 may implement orotherwise access augmented reality content items (e.g., corresponding toapplying Lenses or augmented reality experiences) for providingreal-time special effect(s) and/or sound(s) that may be added to theimage or video. To facilitate the presentation of augmented realitycontent, the augmentation system 208 may implement or otherwise accessobject recognition algorithms (e.g., including machine learningalgorithms) configured to scan an image or video, and to detect/trackthe movement of objects within the image or video.

The map system 210 provides various geographic location functions, andsupports the presentation of map-based media content and messages by themessaging client 104. For example, the map system 210 enables thedisplay of user icons or avatars (e.g., stored in profile data 302) on amap to indicate a current or past location of “friends” of a user, aswell as media content (e.g., collections of messages includingphotographs and videos) generated by such friends, within the context ofa map. For example, a message posted by a user to the messaging system100 from a specific geographic location may be displayed within thecontext of a map at that particular location to “friends” of a specificuser on a map interface of the messaging client 104. A user canfurthermore share his or her location and status information (e.g.,using an appropriate status avatar) with other users of the messagingsystem 100 via the messaging client 104, with this location and statusinformation being similarly displayed within the context of a mapinterface of the messaging client 104 to selected users.

The external resource system 212 provides an interface for the messagingclient 104 to communicate with remote servers (e.g. third-party servers110) to launch or access external resources, i.e. applications orapplets. Each third-party server 110 hosts, for example, a markuplanguage (e.g., HTML5) based application or small-scale version of anapplication (e.g., game, utility, payment, or ride-sharing application).The messaging client 104 may launches a web-based resource (e.g.,application) by accessing the HTML5 file from the third-party servers110 associated with the web-based resource. In certain examples,applications hosted by third-party servers 110 are programmed inJavaScript leveraging a Software Development Kit (SDK) provided by themessaging server 118. The SDK includes Application ProgrammingInterfaces (APIs) with functions that can be called or invoked by theweb-based application. In certain examples, the messaging server 118includes a JavaScript library that provides a given external resourceaccess to certain user data of the messaging client 104. HTML5 is usedas an example technology for programming games, but applications andresources programmed based on other technologies can be used.

In order to integrate the functions of the SDK into the web-basedresource, the SDK is downloaded by a third-party server 110 from themessaging server 118 or is otherwise received by the third-party server110. Once downloaded or received, the SDK is included as part of theapplication code of a web-based external resource. The code of theweb-based resource can then call or invoke certain functions of the SDKto integrate features of the messaging client 104 into the web-basedresource.

The SDK stored on the messaging server 118 effectively provides thebridge between an external resource (e.g., applications 106 or appletsand the messaging client 104. This provides the user with a seamlessexperience of communicating with other users on the messaging client104, while also preserving the look and feel of the messaging client104. To bridge communications between an external resource and amessaging client 104, in certain examples, the SDK facilitatescommunication between third-party servers 110 and the messaging client104. In certain examples, a WebViewJavaScriptBridge running on a clientdevice 102 establishes two one-way communication channels between anexternal resource and the messaging client 104. Messages are sentbetween the external resource and the messaging client 104 via thesecommunication channels asynchronously. Each SDK function invocation issent as a message and callback. Each SDK function is implemented byconstructing a unique callback identifier and sending a message withthat callback identifier.

By using the SDK, not all information from the messaging client 104 isshared with third-party servers 110. The SDK limits which information isshared based on the needs of the external resource. In certain examples,each third-party server 110 provides an HTML5 file corresponding to theweb-based external resource to the messaging server 118. The messagingserver 118 can add a visual representation (such as a box art or othergraphic) of the web-based external resource in the messaging client 104.Once the user selects the visual representation or instructs themessaging client 104 through a GUI of the messaging client 104 to accessfeatures of the web-based external resource, the messaging client 104obtains the HTML5 file and instantiates the resources necessary toaccess the features of the web-based external resource.

The messaging client 104 presents a graphical user interface (e.g., alanding page or title screen) for an external resource. During, before,or after presenting the landing page or title screen, the messagingclient 104 determines whether the launched external resource has beenpreviously authorized to access user data of the messaging client 104.In response to determining that the launched external resource has beenpreviously authorized to access user data of the messaging client 104,the messaging client 104 presents another graphical user interface ofthe external resource that includes functions and features of theexternal resource. In response to determining that the launched externalresource has not been previously authorized to access user data of themessaging client 104, after a threshold period of time (e.g., 3 seconds)of displaying the landing page or title screen of the external resource,the messaging client 104 slides up (e.g., animates a menu as surfacingfrom a bottom of the screen to a middle of or other portion of thescreen) a menu for authorizing the external resource to access the userdata. The menu identifies the type of user data that the externalresource will be authorized to use. In response to receiving a userselection of an accept option, the messaging client 104 adds theexternal resource to a list of authorized external resources and allowsthe external resource to access user data from the messaging client 104.In some examples, the external resource is authorized by the messagingclient 104 to access the user data in accordance with an OAuth 2framework.

The messaging client 104 controls the type of user data that is sharedwith external resources based on the type of external resource beingauthorized. For example, external resources that include full-scaleapplications (e.g., an application 106) are provided with access to afirst type of user data (e.g., only two-dimensional avatars of userswith or without different avatar characteristics). As another example,external resources that include small-scale versions of applications(e.g., web-based versions of applications) are provided with access to asecond type of user data (e.g., payment information, two-dimensionalavatars of users, three-dimensional avatars of users, and avatars withvarious avatar characteristics). Avatar characteristics includedifferent ways to customize a look and feel of an avatar, such asdifferent poses, facial features, clothing, and so forth.

The shopping system 214 provides various shopping-related functionswithin the context of the messaging system 100. Examples ofshopping-related functions include, but are not limited to, allowing auser to: browse a range of items (e.g., products and/or services), viewimages and/or videos of the items, view information about itemspecifications, features and prices, maintain a shopping cart forselecting items for eventual purchase, and/or purchase selected items.In one or more embodiments, the shopping system 214 works in conjunctionwith third party services (e.g., the external resource system 212) inorder to perform one or more of the shopping-related functions withrespect to the messaging system 100. Moreover, the augmentation system208 may work in conjunction with the shopping system 214, in order tomodify the captured image or video to include shopping information(e.g., via overlays, augmented reality content, etc.).

FIG. 3 is a schematic diagram illustrating data structures 300, whichmay be stored in the database 126 of the messaging server system 108,according to certain examples. While the content of the database 126 isshown to comprise a number of tables, it will be appreciated that thedata could be stored in other types of data structures (e.g., as anobject-oriented database).

The database 126 includes message data stored within a message table306. This message data includes, for any particular one message, atleast message sender data, message recipient (or receiver) data, and apayload. Further details regarding information that may be included in amessage, and included within the message data stored in the messagetable 306 is described below with reference to FIG. 4.

An entity table 308 stores entity data, and is linked (e.g.,referentially) to an entity graph 304 and profile data 302. Entities forwhich records are maintained within the entity table 308 may includeindividuals, corporate entities, organizations, objects, places, events,and so forth. Regardless of entity type, any entity regarding which themessaging server system 108 stores data may be a recognized entity. Eachentity is provided with a unique identifier, as well as an entity typeidentifier (not shown).

The entity graph 304 stores information regarding relationships andassociations between entities. Such relationships may be social,professional (e.g., work at a common corporation or organization)interested-based or activity-based, merely for example.

The profile data 302 stores multiple types of profile data about aparticular entity. The profile data 302 may be selectively used andpresented to other users of the messaging system 100, based on privacysettings specified by a particular entity. Where the entity is anindividual, the profile data 302 includes, for example, a user name,telephone number, address, settings (e.g., notification and privacysettings), as well as a user-selected avatar representation (orcollection of such avatar representations). A particular user may thenselectively include one or more of these avatar representations withinthe content of messages communicated via the messaging system 100, andon map interfaces displayed by messaging clients 104 to other users. Thecollection of avatar representations may include “status avatars,” whichpresent a graphical representation of a status or activity that the usermay select to communicate at a particular time.

Where the entity is a group, the profile data 302 for the group maysimilarly include one or more avatar representations associated with thegroup, in addition to the group name, members, and various settings(e.g., notifications) for the relevant group.

The database 126 also stores augmentation data, such as overlays orfilters, in an augmentation table 310. The augmentation data isassociated with and applied to videos (for which data is stored in avideo table 314) and images (for which data is stored in an image table316).

Filters, in one example, are overlays that are displayed as overlaid onan image or video during presentation to a recipient user. Filters maybe of various types, including user-selected filters from a set offilters presented to a sending user by the messaging client 104 when thesending user is composing a message. Other types of filters includegeolocation filters (also known as geo-filters), which may be presentedto a sending user based on geographic location. For example, geolocationfilters specific to a neighborhood or special location may be presentedwithin a user interface by the messaging client 104, based ongeolocation information determined by a Global Positioning System (GPS)unit of the client device 102.

Another type of filter is a data filter, which may be selectivelypresented to a sending user by the messaging client 104, based on otherinputs or information gathered by the client device 102 during themessage creation process. Examples of data filters include currenttemperature at a specific location, a current speed at which a sendinguser is traveling, battery life for a client device 102, or the currenttime.

Other augmentation data that may be stored within the image table 316includes augmented reality content items (e.g., corresponding toapplying Lenses or augmented reality experiences). An augmented realitycontent item may provide a real-time special effect and/or sound thatmay be added to an image or a video.

As described above, augmentation data includes augmented reality contentitems, overlays, image transformations, AR images, and similar termsrefer to modifications that may be applied to image data (e.g., videosor images). This includes real-time modifications, which modify an imageas it is captured using device sensors (e.g., one or multiple cameras)of a client device 102 and then displayed on a screen of the clientdevice 102 with the modifications. This also includes modifications tostored content, such as video clips in a gallery that may be modified.For example, in a client device 102 with access to multiple augmentedreality content items, a user can use a single video clip with multipleaugmented reality content items to see how the different augmentedreality content items will modify the stored clip. For example, multipleaugmented reality content items that apply different pseudorandommovement models can be applied to the same content by selectingdifferent augmented reality content items for the content. Similarly,real-time video capture may be used with an illustrated modification toshow how video images currently being captured by sensors of a clientdevice 102 would modify the captured data. Such data may simply bedisplayed on the screen and not stored in memory, or the contentcaptured by the device sensors may be recorded and stored in memory withor without the modifications (or both). In some systems, a previewfeature can show how different augmented reality content items will lookwithin different windows in a display at the same time. This can, forexample, enable multiple windows with different pseudorandom animationsto be viewed on a display at the same time.

Data and various systems using augmented reality content items or othersuch transform systems to modify content using this data can thusinvolve detection of objects (e.g., faces, hands, bodies, cats, dogs,surfaces, objects, etc.), tracking of such objects as they leave, enter,and move around the field of view in video frames, and the modificationor transformation of such objects as they are tracked. In variousexamples, different methods for achieving such transformations may beused. Some examples may involve generating a three-dimensional meshmodel of the object or objects, and using transformations and animatedtextures of the model within the video to achieve the transformation. Inother examples, tracking of points on an object may be used to place animage or texture (which may be two dimensional or three dimensional) atthe tracked position. In still further examples, neural network analysisof video frames may be used to place images, models, or textures incontent (e.g., images or frames of video). Augmented reality contentitems thus refer both to the images, models, and textures used to createtransformations in content, as well as to additional modeling andanalysis information needed to achieve such transformations with objectdetection, tracking, and placement.

Real-time video processing can be performed with any kind of video data(e.g., video streams, video files, etc.) saved in a memory of acomputerized system of any kind. For example, a user can load videofiles and save them in a memory of a device, or can generate a videostream using sensors of the device. Additionally, any objects can beprocessed using a computer animation model, such as a human's face andparts of a human body, animals, or non-living things such as chairs,cars, or other objects.

In some examples, when a particular modification is selected along withcontent to be transformed, elements to be transformed are identified bythe computing device, and then detected and tracked if they are presentin the frames of the video. The elements of the object are modifiedaccording to the request for modification, thus transforming the framesof the video stream. Transformation of frames of a video stream can beperformed by different methods for different kinds of transformation.For example, for transformations of frames mostly referring to changingforms of object's elements characteristic points for each element of anobject are calculated (e.g., using an Active Shape Model (ASM) or otherknown methods). Then, a mesh based on the characteristic points isgenerated for each of the at least one element of the object. This meshused in the following stage of tracking the elements of the object inthe video stream. In the process of tracking, the mentioned mesh foreach element is aligned with a position of each element. Then,additional points are generated on the mesh. A first set of first pointsis generated for each element based on a request for modification, and aset of second points is generated for each element based on the set offirst points and the request for modification. Then, the frames of thevideo stream can be transformed by modifying the elements of the objecton the basis of the sets of first and second points and the mesh. Insuch method, a background of the modified object can be changed ordistorted as well by tracking and modifying the background.

In some examples, transformations changing some areas of an object usingits elements can be performed by calculating characteristic points foreach element of an object and generating a mesh based on the calculatedcharacteristic points. Points are generated on the mesh, and thenvarious areas based on the points are generated. The elements of theobject are then tracked by aligning the area for each element with aposition for each of the at least one element, and properties of theareas can be modified based on the request for modification, thustransforming the frames of the video stream. Depending on the specificrequest for modification properties of the mentioned areas can betransformed in different ways. Such modifications may involve changingcolor of areas; removing at least some part of areas from the frames ofthe video stream; including one or more new objects into areas which arebased on a request for modification; and modifying or distorting theelements of an area or object. In various examples, any combination ofsuch modifications or other similar modifications may be used. Forcertain models to be animated, some characteristic points can beselected as control points to be used in determining the entirestate-space of options for the model animation.

In some examples of a computer animation model to transform image datausing face detection, the face is detected on an image with use of aspecific face detection algorithm (e.g., Viola-Jones). Then, an ActiveShape Model (ASM) algorithm is applied to the face region of an image todetect facial feature reference points.

Other methods and algorithms suitable for face detection can be used.For example, in some examples, features are located using a landmark,which represents a distinguishable point present in most of the imagesunder consideration. For facial landmarks, for example, the location ofthe left eye pupil may be used. If an initial landmark is notidentifiable (e.g., if a person has an eyepatch), secondary landmarksmay be used. Such landmark identification procedures may be used for anysuch objects. In some examples, a set of landmarks forms a shape. Shapescan be represented as vectors using the coordinates of the points in theshape. One shape is aligned to another with a similarity transform(allowing translation, scaling, and rotation) that minimizes the averageEuclidean distance between shape points. The mean shape is the mean ofthe aligned training shapes.

In some examples, a search for landmarks from the mean shape aligned tothe position and size of the face determined by a global face detectoris started. Such a search then repeats the steps of suggesting atentative shape by adjusting the locations of shape points by templatematching of the image texture around each point and then conforming thetentative shape to a global shape model until convergence occurs. Insome systems, individual template matches are unreliable, and the shapemodel pools the results of the weak template matches to form a strongeroverall classifier. The entire search is repeated at each level in animage pyramid, from coarse to fine resolution.

A transformation system can capture an image or video stream on a clientdevice (e.g., the client device 102) and perform complex imagemanipulations locally on the client device 102 while maintaining asuitable user experience, computation time, and power consumption. Thecomplex image manipulations may include size and shape changes, emotiontransfers (e.g., changing a face from a frown to a smile), statetransfers (e.g., aging a subject, reducing apparent age, changinggender), style transfers, graphical element application, and any othersuitable image or video manipulation implemented by a convolutionalneural network that has been configured to execute efficiently on theclient device 102.

In some examples, a computer animation model to transform image data canbe used by a system where a user may capture an image or video stream ofthe user (e.g., a selfie) using a client device 102 having a neuralnetwork operating as part of a messaging client 104 operating on theclient device 102. The transformation system operating within themessaging client 104 determines the presence of a face within the imageor video stream and provides modification icons associated with acomputer animation model to transform image data, or the computeranimation model can be present as associated with an interface describedherein. The modification icons include changes that may be the basis formodifying the user's face within the image or video stream as part ofthe modification operation. Once a modification icon is selected, thetransform system initiates a process to convert the image of the user toreflect the selected modification icon (e.g., generate a smiling face onthe user). A modified image or video stream may be presented in agraphical user interface displayed on the client device 102 as soon asthe image or video stream is captured, and a specified modification isselected. The transformation system may implement a complexconvolutional neural network on a portion of the image or video streamto generate and apply the selected modification. That is, the user maycapture the image or video stream and be presented with a modifiedresult in real-time or near real-time once a modification icon has beenselected. Further, the modification may be persistent while the videostream is being captured, and the selected modification icon remainstoggled. Machine taught neural networks may be used to enable suchmodifications.

The graphical user interface, presenting the modification performed bythe transform system, may supply the user with additional interactionoptions. Such options may be based on the interface used to initiate thecontent capture and selection of a particular computer animation model(e.g., initiation from a content creator user interface). In variousexamples, a modification may be persistent after an initial selection ofa modification icon. The user may toggle the modification on or off bytapping or otherwise selecting the face being modified by thetransformation system and store it for later viewing or browse to otherareas of the imaging application. Where multiple faces are modified bythe transformation system, the user may toggle the modification on oroff globally by tapping or selecting a single face modified anddisplayed within a graphical user interface. In some examples,individual faces, among a group of multiple faces, may be individuallymodified, or such modifications may be individually toggled by tappingor selecting the individual face or a series of individual facesdisplayed within the graphical user interface.

A story table 312 stores data regarding collections of messages andassociated image, video, or audio data, which are compiled into acollection (e.g., a story or a gallery). The creation of a particularcollection may be initiated by a particular user (e.g., each user forwhich a record is maintained in the entity table 308). A user may createa “personal story” in the form of a collection of content that has beencreated and sent/broadcast by that user. To this end, the user interfaceof the messaging client 104 may include an icon that is user-selectableto enable a sending user to add specific content to his or her personalstory.

A collection may also constitute a “live story,” which is a collectionof content from multiple users that is created manually, automatically,or using a combination of manual and automatic techniques. For example,a “live story” may constitute a curated stream of user-submitted contentfrom varies locations and events. Users whose client devices havelocation services enabled and are at a common location event at aparticular time may, for example, be presented with an option, via auser interface of the messaging client 104, to contribute content to aparticular live story. The live story may be identified to the user bythe messaging client 104, based on his or her location. The end resultis a “live story” told from a community perspective.

A further type of content collection is known as a “location story,”which enables a user whose client device 102 is located within aspecific geographic location (e.g., on a college or university campus)to contribute to a particular collection. In some examples, acontribution to a location story may require a second degree ofauthentication to verify that the end user belongs to a specificorganization or other entity (e.g., is a student on the universitycampus).

As mentioned above, the video table 314 stores video data that, in oneexample, is associated with messages for which records are maintainedwithin the message table 306. Similarly, the image table 316 storesimage data associated with messages for which message data is stored inthe entity table 308. The entity table 308 may associate variousaugmentations from the augmentation table 310 with various images andvideos stored in the image table 316 and the video table 314.

FIG. 4 is a schematic diagram illustrating a structure of a message 400,according to some examples, generated by a messaging client 104 forcommunication to a further messaging client 104 or the messaging server118. The content of a particular message 400 is used to populate themessage table 306 stored within the database 126, accessible by themessaging server 118. Similarly, the content of a message 400 is storedin memory as “in-transit” or “in-flight” data of the client device 102or the application servers 114. A message 400 is shown to include thefollowing example components:

-   -   message identifier 402: a unique identifier that identifies the        message 400.    -   message text payload 404: text, to be generated by a user via a        user interface of the client device 102, and that is included in        the message 400.    -   message image payload 406: image data, captured by a camera        component of a client device 102 or retrieved from a memory        component of a client device 102, and that is included in the        message 400. Image data for a sent or received message 400 may        be stored in the image table 316.    -   message video payload 408: video data, captured by a camera        component or retrieved from a memory component of the client        device 102, and that is included in the message 400. Video data        for a sent or received message 400 may be stored in the video        table 314.    -   message audio payload 410: audio data, captured by a microphone        or retrieved from a memory component of the client device 102,        and that is included in the message 400.    -   message augmentation data 412: augmentation data (e.g., filters,        stickers, or other annotations or enhancements) that represents        augmentations to be applied to message image payload 406,        message video payload 408, or message audio payload 410 of the        message 400. Augmentation data for a sent or received message        400 may be stored in the augmentation table 310.    -   message duration parameter 414: parameter value indicating, in        seconds, the amount of time for which content of the message        (e.g., the message image payload 406, message video payload 408,        message audio payload 410) is to be presented or made accessible        to a user via the messaging client 104.    -   message geolocation parameter 416: geolocation data (e.g.,        latitudinal and longitudinal coordinates) associated with the        content payload of the message. Multiple message geolocation        parameter 416 values may be included in the payload, each of        these parameter values being associated with respect to content        items included in the content (e.g., a specific image into        within the message image payload 406, or a specific video in the        message video payload 408).    -   message story identifier 418: identifier values identifying one        or more content collections (e.g., “stories” identified in the        story table 312) with which a particular content item in the        message image payload 406 of the message 400 is associated. For        example, multiple images within the message image payload 406        may each be associated with multiple content collections using        identifier values.    -   message tag 420: each message 400 may be tagged with multiple        tags, each of which is indicative of the subject matter of        content included in the message payload. For example, where a        particular image included in the message image payload 406        depicts an animal (e.g., a lion), a tag value may be included        within the message tag 420 that is indicative of the relevant        animal. Tag values may be generated manually, based on user        input, or may be automatically generated using, for example,        image recognition.    -   message sender identifier 422: an identifier (e.g., a messaging        system identifier, email address, or device identifier)        indicative of a user of the Client device 102 on which the        message 400 was generated and from which the message 400 was        sent.    -   message receiver identifier 424: an identifier (e.g., a        messaging system identifier, email address, or device        identifier) indicative of a user of the client device 102 to        which the message 400 is addressed.

The contents (e.g., values) of the various components of message 400 maybe pointers to locations in tables within which content data values arestored. For example, an image value in the message image payload 406 maybe a pointer to (or address of) a location within an image table 316.Similarly, values within the message video payload 408 may point to datastored within a video table 314, values stored within the messageaugmentations 412 may point to data stored in an augmentation table 310,values stored within the message story identifier 418 may point to datastored in a story table 312, and values stored within the message senderidentifier 422 and the message receiver identifier 424 may point to userrecords stored within an entity table 308.

FIG. 5 is an interaction diagram illustrating a process 500 forproviding augmented reality-based makeup in a messaging system, inaccordance with some example embodiments. For explanatory purposes, theprocess 500 is primarily described herein with reference to themessaging client 104 of FIG. 1, the augmentation system 208 and theshopping system 214 of FIG. 2. However, one or more blocks (oroperations) of the process 500 may be performed by one or more othercomponents, and/or by other suitable devices. Further for explanatorypurposes, the blocks (or operations) of the process 500 are describedherein as occurring in serial, or linearly. However, multiple blocks (oroperations) of the process 500 may occur in parallel or concurrently. Inaddition, the blocks (or operations) of the process 500 need not beperformed in the order shown and/or one or more blocks (or operations)of the process 500 need not be performed and/or can be replaced by otheroperations. The process 500 may be terminated when its operations arecompleted. In addition, the process 500 may correspond to a method, aprocedure, an algorithm, etc.

The messaging client 104 may be associated with a respective user of themessaging server system 108, and the user may be associated with a useraccount of the messaging server system 108. As noted above, the user maybe identified by the messaging server system 108 based on a uniqueidentifier (e.g., a messaging system identifier, email address and/or adevice identifier) associated with the user account for that user. Inaddition, the messaging server system 108 may implement and/or work inconjunction with the social network server 124 which is configured toidentify other users (e.g., friends) with which a particular user hasrelationships.

As described herein, the messaging client 104 (e.g., in conjunction withthe messaging server system 108) presents augmented reality content fortrying on makeup products. The messaging client 104 activates orotherwise accesses an augmented reality content item, which generates amesh for tracking regions of a face depicted in a captured image (e.g.,a real-time video feed). The augmented reality content item provides fora user to select a region of the face, and to depict color/contrastranges for makeup that can be applied to the selected region. The userselects a particular color and/or contrast, and corresponding makeup ispresented as an overlay on the facial region. In addition, makeupproduct(s) matching the selected color and/or contrast may be presentedwith shopping cart interface element(s) for adding to the user'sshopping cart for eventual purchase.

In one or more embodiments, the messaging client 104 activates a cameraof the client device 102, for example, at startup of the messagingclient 104 to capture an image depicting a face. For example, the cameramay correspond to a front-facing camera for capturing an image whichdepicts the user's face, or to a rear-facing camera for capturing animage of another individual's face. Alternatively or in addition, theimage may correspond to an image (e.g., photo) stored in associationwith the user of the client device 102 (e.g., a photo library).

At block 502, the messaging client 104 receives user input to presentaugmented reality content in association with the face depicted in thecaptured image. As noted above, the augmentation system 208 mayimplement or otherwise access augmented reality content items. Theaugmentation system 208 may correspond to a subsystem of the messagingsystem 100, and may be supported on the client side by the messagingclient 104 and/or on the server side by the application servers 114.Thus, the providing of augmented reality content items may beimplemented client side, server side and/or a combination of client sideand server side.

In conjunction with the augmentation system 208, the messaging client104 may provide a carousel interface which allows the user to cyclethrough and/or select among different augmented reality content items toapply/display with respect to an image captured by the camera. Each ofthe available augmented reality content items is represented by an iconwhich is user-selectable for switching to the respective augmentedreality content item.

Thus, the user input corresponding to block 502 may correspond with theuser selecting an augmented reality content item from among the pluralaugmented reality content items presented within the carousel interface.For example, the selected augmented reality content item providesaugmented reality content that simulates the application of makeup. Themessaging client 104 sends, to the augmentation system 208, a requestfor the selected augmented reality content item (operation 504).

In response, the augmentation system 208 accesses the selected augmentedreality content item (block 506), and provides the messaging client 104with access to the augmented reality content item (operation 508). Forexample, the augmentation system 208 provides the messaging client 104with appropriate code and/or application interfaces for presenting theaugmented reality content item within the messaging client 104.

As noted above, the augmented reality content item provides augmentedreality content that simulates application of makeup with respect to aface depicted in a captured image (e.g., from a real-time video feed, oran image/video stored in a photo library). The augmented reality contentitem is configured to detect when different facial regions are presentin a captured image, and to generate a mesh based on characteristicpoints of the regions of the face. Using the example of makeup, regionsof the face include, but are not limited to the user's eyebrows, eyes,cheekbone high point, cheekbone underside and/or lips. The generatedmesh may be used for tracking these regions of the face in a videostream (e.g., by aligning mesh regions with respective regions of theface), in order to augment/transform display of the region(s) of theface as captured by the device camera. The detecting and/or tracking ofthe regions of the face, including the generation and use of the mesh,may be based on machine learning algorithms.

The messaging client 104 is configured to present the augmented realitycontent item, including the mesh, in association with the capturedimage. In one or more embodiments, presenting the augmented realitycontent item corresponds with employing the mesh to track regions of adepicted face but without displaying overlays (e.g., outlined areas) foreach region. Alternatively, the augmented reality content item mayprovide for displaying an overlay for one or more regions (e.g., anoutline corresponding to the periphery of the region) to facilitate userselection of region(s).

Thus, at block 510, the messaging client 104 receives user inputindicating a region of the captured image. For example, the user mayselect the region corresponding to the user's eye, eyebrow, cheekbonehigh point, cheekbone underside and/or lips. User selection of a regionmay correspond with a user request to be presented with availablecolor/contrast options (e.g., ranges) for the selected region.

The messaging client 104 sends, to the shopping system 214, a requestfor color/contrast ranges for makeup corresponding to the selectedregion (operation 512). For example, the request may be for a range ofcolor values and a range of contrast values relating to available makeupproducts for the selected region. In one or more embodiments, therequest indicates the selected region of the face (e.g., in the form ofa keyword such as “eye,” “eyebrow,” “cheekbone high point,” “cheekboneunderside,” “lips” or via other known techniques for identifying regionsof an image/face).

The shopping system 214 determines the color/contrast ranges based onthe selected region of the face (block 514). As noted above, theshopping system 214 may correspond to a subsystem of the messagingsystem 100, and may be supported on the client side by the messagingclient 104 and/or on the server side by the application servers 114. Inone or more embodiments, functions performed by the shopping system 214may be implemented client side, server side and/or a combination ofclient side and server side. With respect to available color/contrastranges, the shopping system 214 may access (e.g., from a data store)predetermined ranges of color values and/or contrast values with respectto each of the facial regions. The ranges for color/contrast values maybe based on available makeup products that are accessible by theshopping system 214. The determination of color-contrast values may bebased on other signals and/or parameters as discussed below with respectto block 526.

At operation 516, the shopping system 214 sends an indication of thecolor/contrast ranges to the messaging client 104. For example, theshopping system 214 may define the ranges for color/contrast based onone or more of an RGB (red, green blue) color model, an HSL (hue,saturation, lightness) color model and/or an HSV (hue, saturation,value) color model. The messaging client 104 is configured to receivethe values for defining the color/contrast ranges, and for displayingcorresponding interface elements that depict the color/contrast ranges.

Thus, the messaging client 104 displays interface element(s) depictingthe color/contrast ranges (block 518). In one or more embodiments, themessaging client 104 displays a first arc-shaped bar which depicts therange of color values for user selection of a particular color. Themessaging client 104 further displays a second arc-shaped bar whichdepicts the range of contrast values (e.g., based on a selected color)for user selection of a particular contrast. For example, after userselection of a color value, the range of contrast values may bedetermined and displayed with respect to the selected color value.

As discussed below regarding the example of FIG. 6A, the messagingclient 104 displays the first and second arc-shaped bars on left andright sides of the screen, while continuing to display the capturedimage depicting the user's face. In another example corresponding toFIG. 6B, the messaging client 104 displays the first and secondarc-shaped bars at top and bottom parts of the screen, while continuingto display the captured image depicting the user's face.

In another example, as discussed below with respect to FIG. 6C, theinterface element for color/contrast selection is presented as a circle.The periphery of the circle depicts the range of color values for userselection of a particular color. User selection of the contrast valuemay be based on a distance of touch input relative to a center of thecircle (e.g., with lower contrast for touch input at the periphery, andincreasing contrast as the touch input approaches the center of thecircle).

At block 520, the messaging client 104 receives user input selecting acolor value within the range of color values and a contrast value withinthe range of contrast values. The messaging client 104 then displays anoverlay corresponding to makeup based on the user-selected color valueand contrast value (block 522). For example, the augmented realitycontent item is configured to present simulated makeup corresponding tothe selected color/contrast values at the selected facial region. Inthis manner, the augmented reality content item appears to apply makeupto the user's face depicted in the image in real-time.

In addition to simulating application of a makeup color and contrast,the messaging client 104 may provide for displaying available makeupproduct(s) corresponding to the selected color/contrast. Thus, atoperation 524, the messaging clients 104 sends a request for availablemakeup product(s) based on the user-selected color value and contrastvalue. In one or more embodiments, the request indicates thecolor/contrast values, and indicates the selected region of the face(e.g., via keyword as discussed above). Moreover, the request mayinclude further information, such as a user identifier (e.g., amessaging system identifier, email address and/or a device identifier)and/or facial feature data. For example, the messaging client 104 inconjunction with the augmentation system 208 may determine the facialfeature data (e.g., size, shape and/or position of the individualregions of the face or of the face as a whole) based on dimensionsand/or measurements from the mesh.

As noted above, the shopping system 214 (e.g., in conjunction with thirdparty services such as the external resource system 212) allows the userto browse a range of products, view images and/or videos of theproducts, view information about product specifications, features andprices, maintain a shopping cart for selecting products for eventualpurchase, and/or purchase selected products. At block 526, the shoppingsystem 214 determines available makeup product(s) based on the requestprovided at operation 524. The shopping system 214 may base suchdetermination on one or more of the selected color/contrast values, theselected regions of the face (e.g., via keywords), the user identifierand/or the facial data provided with the request.

For example, the shopping system 214 may determine the set of availablemakeup products based on ranking one or more of the following signalsand/or parameters: predefined makeup collections associated with theselected region of the face; user history indicating preferences (e.g.,prior purchases associated with the user identifier and relating tomakeup color, contrast, brand name, etc.); user activity (e.g., activityassociated with the user identifier and relating to workout vs.non-workout makeup); time of year (e.g., with different seasons beingassociated with different makeup collections); user-submitted responsesto a questionnaire; makeup trending data; sponsored keywords; and/ormakeup products sets associated with predefined entities.

With respect to user-submitted responses to a questionnaire, themessaging client 104 in conjunction with the augmented reality contentitem may present the questionnaire to the user. For example, thequestionnaire may be a user-selectable option (e.g., presented when theaugmented reality content item is launched) with predefined questions.The questions may relate to one or more of makeup goals, an ideal look,areas of interest, makeup sensitivities (e.g., allergies) and/orpreferred color/intensity. In a case where the user opts for thequestionnaire, the messaging client 104 may send an indication of theuser-submitted responses to the shopping system 214, as a parameter fordetermining (e.g., ranking) available makeup products.

Regarding sponsorships, the shopping system 214 may provide for thesponsorship of keywords by a third party (e.g., makeup manufacturercorresponding to a brand name). For example, the third party may sponsorone or more keywords relating to regions of a face (e.g., “eye,”“eyebrow,” “cheekbone high point,” “cheekbone underside,” “lips”) and/orcorresponding makeup (e.g., “eye makeup,” “mascara,” “eye shadow,”“lipstick” and the like). In response to determining that the selectedregion of the face corresponds to a sponsored keyword, the shoppingsystem 214 may provide for a higher ranking of makeup products from thethird party relative to other makeup products.

With respect to makeup product sets associated with predefined entities,the predefined entities may correspond to corporate entities, socialmedia influencers, celebrities, and the like. For example, a corporateentity via the external resource system 212 may associate selectedmakeup products/sets with respective facial features (e.g., size, shapeand/or position of the individual regions of the face or of the face asa whole). In another example, a social media influencer may recommend orotherwise be associated with selected makeup products/sets.

The shopping system 214 may be configured to access a database (e.g.,database 126) storing information for a predefined set of entities(e.g., corporations, social media influencers). For example, each entityauthorizes the storing of the information within the database 126, wherethe information includes facial feature data and makeupproduct(s)/set(s) for the entity. Based on the facial feature data ofthe user as provided in the request of operation 512, the shoppingsystem 214 may select an entity with facial feature data thatcorresponds to the face of the user (e.g., based on meeting thresholdvalues with respect to matching face size, shape, dimensions, etc.).

Thus, after ranking makeup products based on the above-mentioned signalsand/or parameters, the shopping system 214 selects available makeupproduct(s) corresponding to the user-selected color/contrast and facialregion. The shopping system 214 sends an indication of the availablemakeup product(s) to the messaging client 104 (operation 528). In onemore embodiments, the above-mentioned signals and/or parameters may beused in determining (e.g., based on ranking) the color/contrast rangesdescribed above with respect to block 514.

The messaging client 104 displays the makeup products for potentialpurchase by the user (block 530). For example, the messaging client 104may provide interface elements for the user to select one or more of theavailable makeup products for adding to a shopping cart associated witha user account of the user. In response, the messaging client 104 sendsan indication of the selected makeup product(s) to the shopping system214, which in turn adds the selected one or more makeup product(s) tothe shopping cart. As noted above, the shopping cart may be implementedby the shopping system 214, in order to allow users to select items foreventual purchase in association with their user account.

FIGS. 6A-6C and 7A-7B illustrate user interfaces for displayingaugmented reality content corresponding to makeup. For example, the userinterfaces may be presented in response to user selection of theaugmented reality content item for applying makeup as described above.As noted above, the augmentation system 208 may provide the messagingclient 104 with access to such augmented reality content item.

FIG. 6A illustrates an example user interface 602 with interfaceelements for selecting makeup color and contrast, in accordance withsome example embodiments. The user interface 602 displays a capturedimage 604 corresponding to a user's face. The user interface 622 furtherincludes a camera selection button 606, a flash button 608, a colorselector 610, a contrast selector 614, and a carousel interface 618 witha selected AR icon 620.

The captured image 604 may correspond to a live video feed captured by acamera of the client device 102. Alternatively or in addition, the imagemay correspond to an image (e.g., photo) stored in association with theuser of the client device 102 (e.g., a photo library).

While the example of FIG. 6A illustrates the captured image 604 ascaptured by a front-facing camera of the client device 102, it ispossible for the messaging client 104 to instead capture an image (e.g.,a live video feed) from a rear-facing camera. In this regard, the cameraselection button 606 corresponds to a user-selectable button forswitching between the rear-facing and front-facing camera of the clientdevice 102. The user interface 602 further includes a flash button 608for activating or deactivating a flash with respect to the capturedimage 604.

As noted above, the augmented reality content item provides for a meshthat is configured to track facial regions. The augmented realitycontent item may or may not display a representation of the mesh (e.g.,via overlays which outline the facial regions). In the example of FIGS.6A-6C, the mesh is not displayed.

The user may select a particular region of the face (e.g., the lips),and the shopping system 214 may determine a range of available color andcontrast values corresponding to the selected lip region. Moreover, theaugmented reality content item provides for the display of the colorselector 610 depicting the range of color values, and may furtherdisplay the contrast selector 614 depicting the range of contrastvalues. The color selector 610 is displayed as a first vertical,arc-shaped bar at a left side of the device screen, and the contrastselector 614 is displayed as a second vertical, arc-shaped bar at aright side of the device screen.

In one or more embodiments, the user may select a color via the colorselector 610 using touch input 612. The range of available contrastvalues depicted in the contrast selector 614 may adjust based on theselected color. In addition, the user may select a contrast via thecontrast selector 614 using touch input 616. Based on the selected colorand contrast, the augmented reality content item may present simulatedmakeup corresponding to the selected color/contrast values (e.g.,associated with touch input 612 and touch input 616) at the selectedfacial region (e.g., lips).

The carousel interface 618 allows the user to cycle through and/orselect different augmented reality content items to apply/display withrespect to the captured image 604. Each of the available augmentedreality content items is represented by an icon which is user-selectablefor switching to the respective augmented reality content item. In oneor more embodiments, the icon corresponding to an active augmentedreality content item (e.g., the selected AR icon 620) is displayed in adifferent manner relative to (e.g., larger than) the remaining icons.User selection of the selected AR icon 620 provides for generating amedia content item which includes an image (e.g., in response to apress/tap gesture of the selected AR icon 620) and/or a video (e.g., inresponse to a press-and-hold gesture of selected AR icon 620) of thescreen content, for example, to send to friends, include in a Story, andthe like.

FIG. 6B illustrates another example user interface 622 with interfaceelements for selecting makeup color and contrast, in accordance withsome example embodiments. For example, the user interface 622corresponds to an alternate embodiment of the augmented reality contentitem corresponding to the selected AR icon 620. Similar to FIG. 6A, theuser interface 622 depicts the captured image 604, and includes thecamera selection button 606, the flash button 608, and the carouselinterface 618.S

The user interface 622 further includes a color selector 624 which isconfigured to receive touch input 626 and perform functions similar tothose of the color selector 610 of FIG. 6A. Moreover, the user interface622 includes a contrast selector 628 which is configured to receivetouch input 630 and perform functions similar to those of the contrastselector 614 of FIG. 6A. However, the color selector 624 and contrastselector 628 are displayed in a horizontal manner (as opposed tovertical in FIG. 6A), and at top and bottom parts (as opposed to leftand right in FIG. 6A) of the device screen.

FIG. 6C illustrates another example user interface 632 with interfaceelements for selecting makeup color and contrast, in accordance withsome example embodiments. For example, the user interface 622corresponds to an alternate embodiment of the augmented reality contentitem corresponding to the selected AR icon 620. Similar to FIG. 6A, theuser interface 622 depicts the captured image 604, and includes thecamera selection button 606, the flash button 608, and the carouselinterface 618.

The user may select a particular region of the face (e.g., the lips),and the shopping system 214 may determine a range of available color andcontrast values corresponding to the selected lip region. Moreover, theaugmented reality content item provides for the display of the colorselector 634 depicting the range of color values, and further providesthe contrast selector 636 for selection of contrast.

The color selector 634 is presented as a periphery of a circle, andincludes the range of color values for user selection of a particularcolor. Moreover, the contrast selector 636 is depicted as an element(e.g., smaller circle) positioned at the center of the circlecorresponding to the color selector 634. The user may select a contrastvalue based on a distance of touch input relative to the contrastselector 636 (e.g., with lower contrast for touch input at theperiphery, and increasing contrast as the touch input approaches thecontrast selector 636). The range of available contrast values mayadjust based on the selected color. In one or more embodiments, the usermay select both the color and contrast via a tap-and-drag gesture (e.g.,with the tap portion for color section and the drag portion for contrastselection). Based on the selected color and contrast, the augmentedreality content item may present simulated makeup corresponding to theselected color/contrast values (e.g., associated with touch input 612and touch input 616) at the selected facial region (e.g., lips).

FIG. 7A illustrates an example user interface 702 in which a userprovides touch input for changing makeup color, in accordance with someexample embodiments. Similar to FIG. 6A, the user interface 702 depictsthe captured image 604, and includes the camera selection button 606,the flash button 608, the carousel interface 618 and the selected ARicon 620.

The user interface 702 may be displayed in response to user inputindicating to display a completed look with respect to selectedcolor/contrast values for multiple regions of a depicted face. The userinput may correspond to a predefined gesture and/or user selection of adedicated button (not shown) to display the completed look. In a casewhere the user had selected multiple makeup products, the completed lookcorresponds with applying all of the selected color/contrast values withrespect to the face depicted in the captured image 604. In response tothe touch input 704 (e.g., corresponding to a press-and-hold gesture),the messaging client 104 displays a color selector 706 as discussedbelow with respect to FIG. 7B.

FIG. 7B illustrates the user interface 702 for changing makeup color inresponse to the touch input 704. In the example of FIG. 7B, the touchinput 704 corresponds to the lip region of the face depicted in thecaptured image 604. In response to the touch input 704, the messagingclient 104 (e.g., in conjunction with the augmented reality contentitem) displays the color selector 706, which depicts the range of colorsavailable for the selection region (e.g., lips). The color selector 706is configured to receive additional touch input 708 for user selectionof a particular color within the range of colors presented by the colorselector 706.

FIG. 8 is a flowchart illustrating a process 800 for providing augmentedreality-based makeup in a messaging system, in accordance with someexample embodiments. For explanatory purposes, the process 800 isprimarily described herein with reference to the messaging client 104 ofFIG. 1, the augmentation system 208 and the shopping system 214 of FIG.2. However, one or more blocks (or operations) of the process 800 may beperformed by one or more other components, and/or by other suitabledevices. Further for explanatory purposes, the blocks (or operations) ofthe process 800 are described herein as occurring in serial, orlinearly. However, multiple blocks (or operations) of the process 800may occur in parallel or concurrently. In addition, the blocks (oroperations) of the process 800 need not be performed in the order shownand/or one or more blocks (or operations) of the process 800 need not beperformed and/or can be replaced by other operations. The process 800may be terminated when its operations are completed. In addition, theprocess 800 may correspond to a method, a procedure, an algorithm, etc.

The messaging client 104 receives a request to present augmented realitycontent in association with an image captured by a device camera, theimage depicting a face of the user (block 802). The messaging client 104may display a carousel interface for selecting the augmented realitycontent item from among plural augmented reality content items, andreceive, via the carousel interface, user selection of the augmentedreality content item from among the plural augmented reality contentitems. The request may correspond to the user selection.

The messaging client 104 (e.g., in conjunction with the augmentationsystem 208) accesses, in response to receiving the request, an augmentedreality content item associated with applying makeup to the face, theaugmented reality content being configured to generate a mesh fortracking plural regions of the face (block 804). The messaging client104 receives user input selecting a region of the plural regions of theface (block 806).

The messaging client 104 (e.g., in conjunction with the shopping system214) determines at least one of a range of color values or a range ofcontrast values relating to available makeup products for the selectedregion (block 808). The messaging client 104 presents, via the augmentedreality content item, an interface element in association with the facedepicted in the image, the interface element for user selection of atleast one of a color value within the range of color values or acontrast value within the range of contrast values (block 810).

The interface element may include a first selection bar which depictsthe range of color values, the first selection bar being configured foruser selection of the color value from among the range of color values.The interface element may further include a second selection bar whichdepicts the range of contrast values, the second selection bar beingconfigured for user selection of the contrast value from among the rangeof contrast values. Each of the first and second selection bars may bearc-shaped.

Alternatively or in addition, the interface element may include a circlehaving a periphery depicting the range of color values, the peripherybeing configured for user selection of the color value from among therange of color values. User selection of the contrast value may be basedon a distance of touch input relative to a center of the circle.

The messaging client 104 may receive second user input selecting atleast one of the color value or the contrast value, and display, via theaugmented reality content item, a makeup overlay corresponding to the atleast one color value or contrast value with respect to the selectedregion of the face. The messaging client 104 (e.g., in conjunction withthe shopping system 214) may determine at least one makeup productcorresponding to the makeup overlay, and provide a second interfaceelement for adding the at least one makeup product to a shopping cartassociated with a user account of the user.

FIG. 9 is a schematic diagram illustrating an access-limiting process900, in terms of which access to content (e.g., an ephemeral message902, and associated multimedia payload of data) or a content collection(e.g., an ephemeral message group 904) may be time-limited (e.g., madeephemeral).

An ephemeral message 902 is shown to be associated with a messageduration parameter 906, the value of which determines an amount of timethat the ephemeral message 902 will be displayed to a receiving user ofthe ephemeral message 902 by the messaging client 104. In one example,an ephemeral message 902 is viewable by a receiving user for up to amaximum of 10 seconds, depending on the amount of time that the sendinguser specifies using the message duration parameter 906.

The message duration parameter 906 and the message receiver identifier424 are shown to be inputs to a message timer 910, which is responsiblefor determining the amount of time that the ephemeral message 902 isshown to a particular receiving user identified by the message receiveridentifier 424. In particular, the ephemeral message 902 will only beshown to the relevant receiving user for a time period determined by thevalue of the message duration parameter 906. The message timer 910 isshown to provide output to a more generalized ephemeral timer system202, which is responsible for the overall timing of display of content(e.g., an ephemeral message 902) to a receiving user.

The ephemeral message 902 is shown in FIG. 9 to be included within anephemeral message group 904 (e.g., a collection of messages in apersonal story, or an event story). The ephemeral message group 904 hasan associated group duration parameter 908, a value of which determinesa time duration for which the ephemeral message group 904 is presentedand accessible to users of the messaging system 100. The group durationparameter 908, for example, may be the duration of a music concert,where the ephemeral message group 904 is a collection of contentpertaining to that concert. Alternatively, a user (either the owninguser or a curator user) may specify the value for the group durationparameter 908 when performing the setup and creation of the ephemeralmessage group 904.

Additionally, each ephemeral message 902 within the ephemeral messagegroup 904 has an associated group participation parameter 912, a valueof which determines the duration of time for which the ephemeral message902 will be accessible within the context of the ephemeral message group904. Accordingly, a particular ephemeral message group 904 may “expire”and become inaccessible within the context of the ephemeral messagegroup 904, prior to the ephemeral message group 904 itself expiring interms of the group duration parameter 908. The group duration parameter908, group participation parameter 912, and message receiver identifier424 each provide input to a group timer 914, which operationallydetermines, firstly, whether a particular ephemeral message 902 of theephemeral message group 904 will be displayed to a particular receivinguser and, if so, for how long. Note that the ephemeral message group 904is also aware of the identity of the particular receiving user as aresult of the message receiver identifier 424.

Accordingly, the group timer 914 operationally controls the overalllifespan of an associated ephemeral message group 904, as well as anindividual ephemeral message 902 included in the ephemeral message group904. In one example, each and every ephemeral message 902 within theephemeral message group 904 remains viewable and accessible for a timeperiod specified by the group duration parameter 908. In a furtherexample, a certain ephemeral message 902 may expire, within the contextof ephemeral message group 904, based on a group participation parameter912. Note that a message duration parameter 906 may still determine theduration of time for which a particular ephemeral message 902 isdisplayed to a receiving user, even within the context of the ephemeralmessage group 904. Accordingly, the message duration parameter 906determines the duration of time that a particular ephemeral message 902is displayed to a receiving user, regardless of whether the receivinguser is viewing that ephemeral message 902 inside or outside the contextof an ephemeral message group 904.

The ephemeral timer system 202 may furthermore operationally remove aparticular ephemeral message 902 from the ephemeral message group 904based on a determination that it has exceeded an associated groupparticipation parameter 912. For example, when a sending user hasestablished a group participation parameter 912 of 24 hours fromposting, the ephemeral timer system 202 will remove the relevantephemeral message 902 from the ephemeral message group 904 after thespecified 24 hours. The ephemeral timer system 202 also operates toremove an ephemeral message group 904 when either the groupparticipation parameter 912 for each and every ephemeral message 902within the ephemeral message group 904 has expired, or when theephemeral message group 904 itself has expired in terms of the groupduration parameter 908.

In certain use cases, a creator of a particular ephemeral message group904 may specify an indefinite group duration parameter 908. In thiscase, the expiration of the group participation parameter 912 for thelast remaining ephemeral message 902 within the ephemeral message group904 will determine when the ephemeral message group 904 itself expires.In this case, a new ephemeral message 902, added to the ephemeralmessage group 904, with a new group participation parameter 912,effectively extends the life of an ephemeral message group 904 to equalthe value of the group participation parameter 912.

Responsive to the ephemeral timer system 202 determining that anephemeral message group 904 has expired (e.g., is no longer accessible),the ephemeral timer system 202 communicates with the messaging system100 (and, for example, specifically the messaging client 104) to causean indicium (e.g., an icon) associated with the relevant ephemeralmessage group 904 to no longer be displayed within a user interface ofthe messaging client 104. Similarly, when the ephemeral timer system 202determines that the message duration parameter 906 for a particularephemeral message 902 has expired, the ephemeral timer system 202 causesthe messaging client 104 to no longer display an indicium (e.g., an iconor textual identification) associated with the ephemeral message 902.

FIG. 10 is a diagrammatic representation of the machine 1000 withinwhich instructions 1010 (e.g., software, a program, an application, anapplet, an app, or other executable code) for causing the machine 1000to perform any one or more of the methodologies discussed herein may beexecuted. For example, the instructions 1010 may cause the machine 1000to execute any one or more of the methods described herein. Theinstructions 1010 transform the general, non-programmed machine 1000into a particular machine 1000 programmed to carry out the described andillustrated functions in the manner described. The machine 1000 mayoperate as a standalone device or may be coupled (e.g., networked) toother machines. In a networked deployment, the machine 1000 may operatein the capacity of a server machine or a client machine in aserver-client network environment, or as a peer machine in apeer-to-peer (or distributed) network environment. The machine 1000 maycomprise, but not be limited to, a server computer, a client computer, apersonal computer (PC), a tablet computer, a laptop computer, a netbook,a set-top box (STB), a personal digital assistant (PDA), anentertainment media system, a cellular telephone, a smartphone, a mobiledevice, a wearable device (e.g., a smartwatch), a smart home device(e.g., a smart appliance), other smart devices, a web appliance, anetwork router, a network switch, a network bridge, or any machinecapable of executing the instructions 1010, sequentially or otherwise,that specify actions to be taken by the machine 1000. Further, whileonly a single machine 1000 is illustrated, the term “machine” shall alsobe taken to include a collection of machines that individually orjointly execute the instructions 1010 to perform any one or more of themethodologies discussed herein. The machine 1000, for example, maycomprise the client device 102 or any one of a number of server devicesforming part of the messaging server system 108. In some examples, themachine 1000 may also comprise both client and server systems, withcertain operations of a particular method or algorithm being performedon the server-side and with certain operations of the particular methodor algorithm being performed on the client-side.

The machine 1000 may include processors 1004, memory 1006, andinput/output I/O components 1002, which may be configured to communicatewith each other via a bus 1040. In an example, the processors 1004(e.g., a Central Processing Unit (CPU), a Reduced Instruction SetComputing (RISC) Processor, a Complex Instruction Set Computing (CISC)Processor, a Graphics Processing Unit (GPU), a Digital Signal Processor(DSP), an Application Specific Integrated Circuit (ASIC), aRadio-Frequency Integrated Circuit (RFIC), another processor, or anysuitable combination thereof) may include, for example, a processor 1008and a processor 1012 that execute the instructions 1010. The term“processor” is intended to include multi-core processors that maycomprise two or more independent processors (sometimes referred to as“cores”) that may execute instructions contemporaneously. Although FIG.10 shows multiple processors 1004, the machine 1000 may include a singleprocessor with a single-core, a single processor with multiple cores(e.g., a multi-core processor), multiple processors with a single core,multiple processors with multiples cores, or any combination thereof.

The memory 1006 includes a main memory 1014, a static memory 1016, and astorage unit 1018, both accessible to the processors 1004 via the bus1040. The main memory 1006, the static memory 1016, and storage unit1018 store the instructions 1010 embodying any one or more of themethodologies or functions described herein. The instructions 1010 mayalso reside, completely or partially, within the main memory 1014,within the static memory 1016, within machine-readable medium 1020within the storage unit 1018, within at least one of the processors 1004(e.g., within the Processor's cache memory), or any suitable combinationthereof, during execution thereof by the machine 1000.

The I/O components 1002 may include a wide variety of components toreceive input, provide output, produce output, transmit information,exchange information, capture measurements, and so on. The specific I/Ocomponents 1002 that are included in a particular machine will depend onthe type of machine. For example, portable machines such as mobilephones may include a touch input device or other such input mechanisms,while a headless server machine will likely not include such a touchinput device. It will be appreciated that the I/O components 1002 mayinclude many other components that are not shown in FIG. 10. In variousexamples, the I/O components 1002 may include user output components1026 and user input components 1028. The user output components 1026 mayinclude visual components (e.g., a display such as a plasma displaypanel (PDP), a light-emitting diode (LED) display, a liquid crystaldisplay (LCD), a projector, or a cathode ray tube (CRT)), acousticcomponents (e.g., speakers), haptic components (e.g., a vibratory motor,resistance mechanisms), other signal generators, and so forth. The userinput components 1028 may include alphanumeric input components (e.g., akeyboard, a touch screen configured to receive alphanumeric input, aphoto-optical keyboard, or other alphanumeric input components),point-based input components (e.g., a mouse, a touchpad, a trackball, ajoystick, a motion sensor, or another pointing instrument), tactileinput components (e.g., a physical button, a touch screen that provideslocation and force of touches or touch gestures, or other tactile inputcomponents), audio input components (e.g., a microphone), and the like.

In further examples, the I/O components 1002 may include biometriccomponents 1030, motion components 1032, environmental components 1034,or position components 1036, among a wide array of other components. Forexample, the biometric components 1030 include components to detectexpressions (e.g., hand expressions, facial expressions, vocalexpressions, body gestures, or eye-tracking), measure biosignals (e.g.,blood pressure, heart rate, body temperature, perspiration, or brainwaves), identify a person (e.g., voice identification, retinalidentification, facial identification, fingerprint identification, orelectroencephalogram-based identification), and the like. The motioncomponents 1032 include acceleration sensor components (e.g.,accelerometer), gravitation sensor components, rotation sensorcomponents (e.g., gyroscope).

The environmental components 1034 include, for example, one or cameras(with still image/photograph and video capabilities), illuminationsensor components (e.g., photometer), temperature sensor components(e.g., one or more thermometers that detect ambient temperature),humidity sensor components, pressure sensor components (e.g.,barometer), acoustic sensor components (e.g., one or more microphonesthat detect background noise), proximity sensor components (e.g.,infrared sensors that detect nearby objects), gas sensors (e.g., gasdetection sensors to detection concentrations of hazardous gases forsafety or to measure pollutants in the atmosphere), or other componentsthat may provide indications, measurements, or signals corresponding toa surrounding physical environment.

With respect to cameras, the client device 102 may have a camera systemcomprising, for example, front cameras on a front surface of the clientdevice 102 and rear cameras on a rear surface of the client device 102.The front cameras may, for example, be used to capture still images andvideo of a user of the client device 102 (e.g., “selfies”), which maythen be augmented with augmentation data (e.g., filters) describedabove. The rear cameras may, for example, be used to capture stillimages and videos in a more traditional camera mode, with these imagessimilarly being augmented with augmentation data. In addition to frontand rear cameras, the client device 102 may also include a 360° camerafor capturing 360° photographs and videos.

Further, the camera system of a client device 102 may include dual rearcameras (e.g., a primary camera as well as a depth-sensing camera), oreven triple, quad or penta rear camera configurations on the front andrear sides of the client device 102. These multiple cameras systems mayinclude a wide camera, an ultra-wide camera, a telephoto camera, a macrocamera and a depth sensor, for example.

The position components 1036 include location sensor components (e.g., aGPS receiver component), altitude sensor components (e.g., altimeters orbarometers that detect air pressure from which altitude may be derived),orientation sensor components (e.g., magnetometers), and the like.

Communication may be implemented using a wide variety of technologies.The I/O components 1002 further include communication components 1038operable to couple the machine 1000 to a network 1022 or devices 1024via respective coupling or connections. For example, the communicationcomponents 1038 may include a network interface Component or anothersuitable device to interface with the network 1022. In further examples,the communication components 1038 may include wired communicationcomponents, wireless communication components, cellular communicationcomponents, Near Field Communication (NFC) components, Bluetooth®components (e.g., Bluetooth® Low Energy), Wi-Fi® components, and othercommunication components to provide communication via other modalities.The devices 1024 may be another machine or any of a wide variety ofperipheral devices (e.g., a peripheral device coupled via a USB).

Moreover, the communication components 1038 may detect identifiers orinclude components operable to detect identifiers. For example, thecommunication components 1038 may include Radio Frequency Identification(RFID) tag reader components, NFC smart tag detection components,optical reader components (e.g., an optical sensor to detectone-dimensional bar codes such as Universal Product Code (UPC) bar code,multi-dimensional bar codes such as Quick Response (QR) code, Azteccode, Data Matrix, Dataglyph, MaxiCode, PDF417, Ultra Code, UCC RSS-2Dbar code, and other optical codes), or acoustic detection components(e.g., microphones to identify tagged audio signals). In addition, avariety of information may be derived via the communication components1038, such as location via Internet Protocol (IP) geolocation, locationvia Wi-Fi® signal triangulation, location via detecting an NFC beaconsignal that may indicate a particular location, and so forth.

The various memories (e.g., main memory 1014, static memory 1016, andmemory of the processors 1004) and storage unit 1018 may store one ormore sets of instructions and data structures (e.g., software) embodyingor used by any one or more of the methodologies or functions describedherein. These instructions (e.g., the instructions 1010), when executedby processors 1004, cause various operations to implement the disclosedexamples.

The instructions 1010 may be transmitted or received over the network1022, using a transmission medium, via a network interface device (e.g.,a network interface component included in the communication components1038) and using any one of several well-known transfer protocols (e.g.,hypertext transfer protocol (HTTP)). Similarly, the instructions 1010may be transmitted or received using a transmission medium via acoupling (e.g., a peer-to-peer coupling) to the devices 1024.

FIG. 11 is a block diagram 1100 illustrating a software architecture1104, which can be installed on any one or more of the devices describedherein. The software architecture 1104 is supported by hardware such asa machine 1102 that includes processors 1120, memory 1126, and I/Ocomponents 1138. In this example, the software architecture 1104 can beconceptualized as a stack of layers, where each layer provides aparticular functionality. The software architecture 1104 includes layerssuch as an operating system 1112, libraries 1110, frameworks 1108, andapplications 1106. Operationally, the applications 1106 invoke API calls1150 through the software stack and receive messages 1152 in response tothe API calls 1150.

The operating system 1112 manages hardware resources and provides commonservices. The operating system 1112 includes, for example, a kernel1114, services 1116, and drivers 1122. The kernel 1114 acts as anabstraction layer between the hardware and the other software layers.For example, the kernel 1114 provides memory management, processormanagement (e.g., scheduling), component management, networking, andsecurity settings, among other functionality. The services 1116 canprovide other common services for the other software layers. The drivers1122 are responsible for controlling or interfacing with the underlyinghardware. For instance, the drivers 1122 can include display drivers,camera drivers, BLUETOOTH® or BLUETOOTH® Low Energy drivers, flashmemory drivers, serial communication drivers (e.g., USB drivers), WI-FI®drivers, audio drivers, power management drivers, and so forth.

The libraries 1110 provide a common low-level infrastructure used by theapplications 1106. The libraries 1110 can include system libraries 1118(e.g., C standard library) that provide functions such as memoryallocation functions, string manipulation functions, mathematicfunctions, and the like. In addition, the libraries 1110 can include APIlibraries 1124 such as media libraries (e.g., libraries to supportpresentation and manipulation of various media formats such as MovingPicture Experts Group-4 (MPEG4), Advanced Video Coding (H.264 or AVC),Moving Picture Experts Group Layer-3 (MP3), Advanced Audio Coding (AAC),Adaptive Multi-Rate (AMR) audio codec, Joint Photographic Experts Group(JPEG or JPG), or Portable Network Graphics (PNG)), graphics libraries(e.g., an OpenGL framework used to render in two dimensions (2D) andthree dimensions (3D) in a graphic content on a display), databaselibraries (e.g., SQLite to provide various relational databasefunctions), web libraries (e.g., WebKit to provide web browsingfunctionality), and the like. The libraries 1110 can also include a widevariety of other libraries 1128 to provide many other APIs to theapplications 1106.

The frameworks 1108 provide a common high-level infrastructure that isused by the applications 1106. For example, the frameworks 1108 providevarious graphical user interface (GUI) functions, high-level resourcemanagement, and high-level location services. The frameworks 1108 canprovide a broad spectrum of other APIs that can be used by theapplications 1106, some of which may be specific to a particularoperating system or platform.

In an example, the applications 1106 may include a home application1136, a contacts application 1130, a browser application 1132, a bookreader application 1134, a location application 1142, a mediaapplication 1144, a messaging application 1146, a game application 1148,and a broad assortment of other applications such as a third-partyapplication 1140. The applications 1106 are programs that executefunctions defined in the programs. Various programming languages can beemployed to create one or more of the applications 1106, structured in avariety of manners, such as object-oriented programming languages (e.g.,Objective-C, Java, or C++) or procedural programming languages (e.g., Cor assembly language). In a specific example, the third-partyapplication 1140 (e.g., an application developed using the ANDROID™ orIOS™ software development kit (SDK) by an entity other than the vendorof the particular platform) may be mobile software running on a mobileoperating system such as IOS™, ANDROID™, WINDOWS® Phone, or anothermobile operating system. In this example, the third-party application1140 can invoke the API calls 1150 provided by the operating system 1112to facilitate functionality described herein.

“Carrier signal” refers to any intangible medium that is capable ofstoring, encoding, or carrying instructions for execution by themachine, and includes digital or analog communications signals or otherintangible media to facilitate communication of such instructions.Instructions may be transmitted or received over a network using atransmission medium via a network interface device.

“Client device” refers to any machine that interfaces to acommunications network to obtain resources from one or more serversystems or other client devices. A client device may be, but is notlimited to, a mobile phone, desktop computer, laptop, portable digitalassistants (PDAs), smartphones, tablets, ultrabooks, netbooks, laptops,multi-processor systems, microprocessor-based or programmable consumerelectronics, game consoles, set-top boxes, or any other communicationdevice that a user may use to access a network.

“Communication network” refers to one or more portions of a network thatmay be an ad hoc network, an intranet, an extranet, a virtual privatenetwork (VPN), a local area network (LAN), a wireless LAN (WLAN), a widearea network (WAN), a wireless WAN (WWAN), a metropolitan area network(MAN), the Internet, a portion of the Internet, a portion of the PublicSwitched Telephone Network (PSTN), a plain old telephone service (POTS)network, a cellular telephone network, a wireless network, a Wi-Fi®network, another type of network, or a combination of two or more suchnetworks. For example, a network or a portion of a network may include awireless or cellular network and the coupling may be a Code DivisionMultiple Access (CDMA) connection, a Global System for Mobilecommunications (GSM) connection, or other types of cellular or wirelesscoupling. In this example, the coupling may implement any of a varietyof types of data transfer technology, such as Single Carrier RadioTransmission Technology (1×RTT), Evolution-Data Optimized (EVDO)technology, General Packet Radio Service (GPRS) technology, EnhancedData rates for GSM Evolution (EDGE) technology, third GenerationPartnership Project (3GPP) including 3G, fourth generation wireless (4G)networks, Universal Mobile Telecommunications System (UMTS), High SpeedPacket Access (HSPA), Worldwide Interoperability for Microwave Access(WiMAX), Long Term Evolution (LTE) standard, others defined by variousstandard-setting organizations, other long-range protocols, or otherdata transfer technology.

“Component” refers to a device, physical entity, or logic havingboundaries defined by function or subroutine calls, branch points, APIs,or other technologies that provide for the partitioning ormodularization of particular processing or control functions. Componentsmay be combined via their interfaces with other components to carry outa machine process. A component may be a packaged functional hardwareunit designed for use with other components and a part of a program thatusually performs a particular function of related functions. Componentsmay constitute either software components (e.g., code embodied on amachine-readable medium) or hardware components. A “hardware component”is a tangible unit capable of performing certain operations and may beconfigured or arranged in a certain physical manner. In variousexamples, one or more computer systems (e.g., a standalone computersystem, a client computer system, or a server computer system) or one ormore hardware components of a computer system (e.g., a processor or agroup of processors) may be configured by software (e.g., an applicationor application portion) as a hardware component that operates to performcertain operations as described herein. A hardware component may also beimplemented mechanically, electronically, or any suitable combinationthereof. For example, a hardware component may include dedicatedcircuitry or logic that is permanently configured to perform certainoperations. A hardware component may be a special-purpose processor,such as a field-programmable gate array (FPGA) or an applicationspecific integrated circuit (ASIC). A hardware component may alsoinclude programmable logic or circuitry that is temporarily configuredby software to perform certain operations. For example, a hardwarecomponent may include software executed by a general-purpose processoror other programmable processor. Once configured by such software,hardware components become specific machines (or specific components ofa machine) uniquely tailored to perform the configured functions and areno longer general-purpose processors. It will be appreciated that thedecision to implement a hardware component mechanically, in dedicatedand permanently configured circuitry, or in temporarily configuredcircuitry (e.g., configured by software), may be driven by cost and timeconsiderations. Accordingly, the phrase “hardware component” (or“hardware-implemented component”) should be understood to encompass atangible entity, be that an entity that is physically constructed,permanently configured (e.g., hardwired), or temporarily configured(e.g., programmed) to operate in a certain manner or to perform certainoperations described herein. Considering examples in which hardwarecomponents are temporarily configured (e.g., programmed), each of thehardware components need not be configured or instantiated at any oneinstance in time. For example, where a hardware component comprises ageneral-purpose processor configured by software to become aspecial-purpose processor, the general-purpose processor may beconfigured as respectively different special-purpose processors (e.g.,comprising different hardware components) at different times. Softwareaccordingly configures a particular processor or processors, forexample, to constitute a particular hardware component at one instanceof time and to constitute a different hardware component at a differentinstance of time. Hardware components can provide information to, andreceive information from, other hardware components. Accordingly, thedescribed hardware components may be regarded as being communicativelycoupled. Where multiple hardware components exist contemporaneously,communications may be achieved through signal transmission (e.g., overappropriate circuits and buses) between or among two or more of thehardware components. In examples in which multiple hardware componentsare configured or instantiated at different times, communicationsbetween such hardware components may be achieved, for example, throughthe storage and retrieval of information in memory structures to whichthe multiple hardware components have access. For example, one hardwarecomponent may perform an operation and store the output of thatoperation in a memory device to which it is communicatively coupled. Afurther hardware component may then, at a later time, access the memorydevice to retrieve and process the stored output. Hardware componentsmay also initiate communications with input or output devices, and canoperate on a resource (e.g., a collection of information). The variousoperations of example methods described herein may be performed, atleast partially, by one or more processors that are temporarilyconfigured (e.g., by software) or permanently configured to perform therelevant operations. Whether temporarily or permanently configured, suchprocessors may constitute processor-implemented components that operateto perform one or more operations or functions described herein. As usedherein, “processor-implemented component” refers to a hardware componentimplemented using one or more processors. Similarly, the methodsdescribed herein may be at least partially processor-implemented, with aparticular processor or processors being an example of hardware. Forexample, at least some of the operations of a method may be performed byone or more processors 1004 or processor-implemented components.Moreover, the one or more processors may also operate to supportperformance of the relevant operations in a “cloud computing”environment or as a “software as a service” (SaaS). For example, atleast some of the operations may be performed by a group of computers(as examples of machines including processors), with these operationsbeing accessible via a network (e.g., the Internet) and via one or moreappropriate interfaces (e.g., an API). The performance of certain of theoperations may be distributed among the processors, not only residingwithin a single machine, but deployed across a number of machines. Insome examples, the processors or processor-implemented components may belocated in a single geographic location (e.g., within a homeenvironment, an office environment, or a server farm). In otherexamples, the processors or processor-implemented components may bedistributed across a number of geographic locations.

“Computer-readable storage medium” refers to both machine-storage mediaand transmission media. Thus, the terms include both storagedevices/media and carrier waves/modulated data signals. The terms“machine-readable medium,” “computer-readable medium” and“device-readable medium” mean the same thing and may be usedinterchangeably in this disclosure.

“Ephemeral message” refers to a message that is accessible for atime-limited duration. An ephemeral message may be a text, an image, avideo and the like. The access time for the ephemeral message may be setby the message sender. Alternatively, the access time may be a defaultsetting or a setting specified by the recipient. Regardless of thesetting technique, the message is transitory.

“Machine storage medium” refers to a single or multiple storage devicesand media (e.g., a centralized or distributed database, and associatedcaches and servers) that store executable instructions, routines anddata. The term shall accordingly be taken to include, but not be limitedto, solid-state memories, and optical and magnetic media, includingmemory internal or external to processors. Specific examples ofmachine-storage media, computer-storage media and device-storage mediainclude non-volatile memory, including by way of example semiconductormemory devices, e.g., erasable programmable read-only memory (EPROM),electrically erasable programmable read-only memory (EEPROM), FPGA, andflash memory devices; magnetic disks such as internal hard disks andremovable disks; magneto-optical disks; and CD-ROM and DVD-ROM disks Theterms “machine-storage medium,” “device-storage medium,”“computer-storage medium” mean the same thing and may be usedinterchangeably in this disclosure. The terms “machine-storage media,”“computer-storage media,” and “device-storage media” specificallyexclude carrier waves, modulated data signals, and other such media, atleast some of which are covered under the term “signal medium.”

“Non-transitory computer-readable storage medium” refers to a tangiblemedium that is capable of storing, encoding, or carrying theinstructions for execution by a machine.

“Signal medium” refers to any intangible medium that is capable ofstoring, encoding, or carrying the instructions for execution by amachine and includes digital or analog communications signals or otherintangible media to facilitate communication of software or data. Theterm “signal medium” shall be taken to include any form of a modulateddata signal, carrier wave, and so forth. The term “modulated datasignal” means a signal that has one or more of its characteristics setor changed in such a matter as to encode information in the signal. Theterms “transmission medium” and “signal medium” mean the same thing andmay be used interchangeably in this disclosure.

What is claimed is:
 1. A method, comprising: receiving, by a messagingapplication running on a device of a user, a request to presentaugmented reality content in association with an image captured by adevice camera, the image depicting a face of the user; accessing, inresponse to receiving the request, an augmented reality content itemassociated with applying makeup to the face, the augmented realitycontent being configured to generate a mesh for tracking plural regionsof the face; receiving user input selecting a region of the pluralregions of the face; determining at least one of a range of color valuesor a range of contrast values relating to available makeup products forthe selected region; and presenting, via the augmented reality contentitem, an interface element in association with the face depicted in theimage, the interface element for user selection of at least one of acolor value within the range of color values or a contrast value withinthe range of contrast values.
 2. The method of claim 1, wherein theinterface element comprises a first selection bar which depicts therange of color values, the first selection bar being configured for userselection of the color value from among the range of color values. 3.The method of claim 2, wherein the interface element further comprises asecond selection bar which depicts the range of contrast values, thesecond selection bar being configured for user selection of the contrastvalue from among the range of contrast values.
 4. The method of claim 3,wherein each of the first and second selection bars is arc-shaped. 5.The method of claim 1, wherein the interface element comprises a circlehaving a periphery depicting the range of color values, the peripherybeing configured for user selection of the color value from among therange of color values.
 6. The method of claim 5, wherein user selectionof the contrast value is based on a distance of touch input relative toa center of the circle.
 7. The method of claim 1, further comprising:receiving second user input selecting at least one of the color value orthe contrast value; and displaying, via the augmented reality contentitem, a makeup overlay corresponding to the at least one color value orcontrast value with respect to the selected region of the face.
 8. Themethod of claim 7, further comprising: determining at least one makeupproduct corresponding to the makeup overlay; and providing a secondinterface element for adding the at least one makeup product to ashopping cart associated with a user account of the user.
 9. The methodof claim 1, further comprising: displaying, by the messagingapplication, a carousel interface for selecting the augmented realitycontent item from among plural augmented reality content items; andreceiving, via the carousel interface, user selection of the augmentedreality content item from among the plural augmented reality contentitems, wherein the request corresponds to the user selection.
 10. Adevice comprising: a processor; and a memory storing instructions that,when executed by the processor, configure the processor to performoperations comprising: receiving, by a messaging application running onthe device of a user, a request to present augmented reality content inassociation with an image captured by a device camera, the imagedepicting a face of the user; accessing, in response to receiving therequest, an augmented reality content item associated with applyingmakeup to the face, the augmented reality content being configured togenerate a mesh for tracking plural regions of the face; receiving userinput selecting a region of the plural regions of the face; determiningat least one of a range of color values or a range of contrast valuesrelating to available makeup products for the selected region; andpresenting, via the augmented reality content item, an interface elementin association with the face depicted in the image, the interfaceelement for user selection of at least one of a color value within therange of color values or a contrast value within the range of contrastvalues.
 11. The device of claim 10, wherein the interface elementcomprises a first selection bar which depicts the range of color values,the first selection bar being configured for user selection of the colorvalue from among the range of color values.
 12. The device of claim 11,wherein the interface element further comprises a second selection barwhich depicts the range of contrast values, the second selection barbeing configured for user selection of the contrast value from among therange of contrast values.
 13. The device of claim 12, wherein each ofthe first and second selection bars is arc-shaped.
 14. The device ofclaim 10, wherein the interface element comprises a circle having aperiphery depict the range of color values, the periphery beingconfigured for user selection of the color value from among the range ofcolor values.
 15. The device of claim 14, wherein user selection of thecontrast value is based on a distance of touch input relative to acenter of the circle.
 16. The device of claim 10, the operations furthercomprising: receive second user input selecting at least one of thecolor value or the contrast value; and display, via the augmentedreality content item, a makeup overlay corresponding to the at least onecolor value or contrast value with respect to the selected region of theface.
 17. The device of claim 16, the operations further comprising:determine at least one makeup product corresponding to the makeupoverlay; and provide a second interface element for adding the at leastone makeup product to a shopping cart associated with a user account ofthe user.
 18. The device of claim 10, the operations further comprising:displaying, by the messaging application, a carousel interface forselecting the augmented reality content item from among plural augmentedreality content items; and receiving, via the carousel interface, userselection of the augmented reality content item from among the pluralaugmented reality content items, wherein the request corresponds to theuser selection.
 19. A non-transitory computer-readable storage medium,the computer-readable storage medium including instructions that whenexecuted by a computer, cause the computer to: receive, by a messagingapplication running on a device of a user, a request to presentaugmented reality content in association with an image captured by adevice camera, the image depicting a face of the user; access, inresponse to receiving the request, an augmented reality content itemassociated with applying makeup to the face, the augmented realitycontent being configured to generate a mesh for tracking plural regionsof the face; receive user input selecting a region of the plural regionsof the face; determine at least one of a range of color values or arange of contrast values relating to available makeup products for theselected region; and present, via the augmented reality content item, aninterface element in association with the face depicted in the image,the interface element for user selection of at least one of a colorvalue within the range of color values or a contrast value within therange of contrast values.
 20. The computer-readable storage medium ofclaim 19, wherein the interface element comprises a first selection barwhich depicts the range of color values, the first selection bar beingconfigured for user selection of the color value from among the range ofcolor values.